Winding device for spring-motors.



I 12 I A. J.

, Inventori /2% Patented Mar. 13, 1917.

rosnrn w. Jo ns, or PELHAM, new nnw Yemen. Y., A

YORK, ASSIGNOR TO JONESMOTROLA, INC., 0 CORPORATION NEW YORK.

WENDING DEVICE FOR SPRING-MOTORS.

Application filed December 2, 1915.

, To all whom it may concern:

Be it known that T, J osnrn W. JONES, a citizen of the United States, and resident of Pelham, in the county of VVestchester, and State of New York, have invented a new and useful Improyement in Winding Devices for Spring-Motors," of which the following is a specification.

This invention is directed to means for maintaining a spring-motor under operative tension at all times.

The invention includes a prime motor and means for connecting it with the" springmotor, comprising a movable element such as a longitudinally movable rotary shaft, whose movement is accomplished by pressure exerted thereon by the varying resistance of the spring-motor spring due to the winding and unwinding thereof for stopping and startingthe prime motor. 1

The invention more particularly includes an electric motor and its controlling switch,

said switch being opened and closed by the longitudinal movement of the rotary armature shaft, which shaft has a winding connection with the sprin -motor, endwise pressure exerted by the tendency of the spring-motor spring to unwind {being imparted to the armature shaft for moving it in a direction to open the switch for stopping the motor spring has been Wound up to a predetermined degree of tension and other pressure means, such as a'spring, being employed for moving the armature shaftinlthe opposite direction to close the switch for starting the electric motor when the spring-motor spring has been unwound to a predetermined degree of tension; the movement of the shaft being accomplished by theoverbalancing of the pressure of either one of the two shaft moving means due to the varying resistance of the spring-motor spring as 1t is wound and unwound between said predetermined degrees of tension.

A practical embodiment of my invention is represented in the accompanying draw: ings, in which,

Figure 1 is a view of the winding device shown partly in elevation and partly in sec= tion.

T-Yg'. is a similar view taken at right an- Specification of Letters Patent.

present instance through a worm electric motor when the spring-- Patented Mar; 13, 1911'.

Scria1N0.64,721.

gles to. Fig. 1, the motorcontrolling switch being, shown in its closed position, and

Fig. 3 is a detail section showing the switch thrown to its open position.

A portion motor is shown in Fig. 1 and its winding shaft is denoted by 2, from which shaft an extension shaft 3 projects.

The winding device includes a prime motor adapted for winding connection with the spr1ng-motor.

In the present embodiment of my invention, the prime motor is shown as an electric motor 1 having a longitudinally movable rotary armature shaft 5 slidably and rotatably mounted in suitable bearings, it being understood that the commutator ring and brushes, not shown, shall be so arranged as to be kept in contact throughout the longitudinal movement of the armature shaft.

This armature shaft has a winding connection with the spring-motor spring, in the 6 on the armature shaft,and its worm gear 7 on a sleeve 8 surrounding the extension shaft 3 of the spring-motor, which sleeve is secured to the extension shaft by a set screw 9 passing through a collar 10 on the inner end of the sleeve and through the sleeve into binding engagement with said shaft.

A housing 11 is provided for the gears,

which housing includes the top 12 of the the removable cover 13 motor casing and held [in position over theworm gear suitable fastening screws 1%.

A controlling switch for-the electric moto is provided, which switch may be of any ell known or approved form. This switch is mounted on the housing 11 and comprises an insulating base 15 secured by screws 16 to the housing, said base "having two circuit contact pieces 17 and 18, electrically connected to the circuit wires 21, '22. the circuit wire 22 leading through the electric motor. as indicated diagrammatically inFig. 2.

The longitudinally movable plunger 23 of the switch i's'arranged in alinement with the armature shaft 5 and it has an enlarged inner end 21 slidablv mounted in the reduced bore of a recess 25 in the housing 11.

For anti-friction purposes, a ball 26 may be interposed between the adjacent ends of of the spring 1 of'a spring-.

the armature shaft and switch plunger. This plunger is also provided with a double conical enlargement 27 surrounded by a yielding contact ring 28 arranged to be snapped into and out of engagement with the contact pieces 17, 18, to close and open the circuit for starting and stopping the motor as the plunger nears the limits of its inward and outward movements, respectively.

The outer end of the plunger :23 is provided with a push-button 29 serving as a manual means for moving theplunger inwardly to close the circuit for starting the motor at pleasure' The tendency of the spring-motor spring to unwind exerts an endwise pressure on the armature shaft 5 through the worm gear 7 and worm 6 tending to move the shaft longitudinally in a direction to open the switch through the plunger 23, which pressure varies as the resistance of the spring-motor spring varies. An automatic means is provided for starting the motor, which means exerts an endwise pressure in the opposite direction on the armature shaft through the plunger 23, to close the switch and to move the armature shaft against the pressure exerted by the resistance of the springmotor spring.

This pressure means is shown as a coil spring 30 seated in the recess 25 of the housing 11 between the enlarged inner end 24 of the plunger and a plate 31 held in place at the mouth of the recess by the insulating base 15 of the switch. This plate 31 serves to limit the movement of the spring ring 28 of the switch away from the contact pieces 17, 18.

The tension of the spring 30 is made so that it will overcome the pressure exerted by the resistance of the spring-motor spring when said spring-motor spring tension is reduced to a predetermined degree by the unwinding thereof, and will, in turn, be overcome by the pressure exerted by the resistance of the spring-motor spring when the spring-motor spring has been wound to a predetermined degree.

The operation of the device is as follows: Assuming the springanotor spring has been unwound to a predetermined low tension and that the switch has been closed by the pressure exerted by the spring 30. and the armature shaft moved longitudinally, to the limit of its movement in one direction. the rotary movement of the armature shaft due to the operation of the electric motor will wind the spring-motor spring through the gear up to a point where the endwise pressure on the armature shaft, due to the increased tension of the spring-motor spring, will move the armature shaft longitudinally against the presshre exerted by the spring 30 into position to open the switch and thereby through the plunger 23 and ring 28. This will, automaticall cause the electric motor to stop and thereby cease winding the spring-motor spring. When the spring-motor spring has been unwound to a point where its endwise pressure on the armature shaft is less than the pressure of the spring 30, the sprin 30 will move the plunger 'ie armature shaft in the op posite direction and close the switch to again start the motor.

From the above description it will be seen that the 'winding device is under the control of the pressure exerted by the varying resistance of the spring-motor spring and is operated by an overbalancing of pressure thereon to maintain the tension of the spring-motor spring within predetermined limits, irrespective of the number of rotations of the spring-motor winding shaft. This winding device will, therefore, always maintain the spring between the desired degrees of tension irrespective of the weakening of the pring due to long continued use, the device, as above indicated, not being controlled by the number of revolutions of the spring-motor winding shaft.

It is obvious that this device may be utilized in connection with spring-motors of any character wherever it is desirable to automatically maintain the spring between predetermined degrees of tension.

It is also seen that I have provided manual means for starting the motor at any time irrespective of the tension of the springmotor spring, said means not interfering in any degree with the operation of the device for automatically controlling the tension of the spring.

Means are employed for securely holding the winding device to its support against turning on the spring-motor winding shaft due to the torque of the spring-motor spring, such means for instance, being a plate 82, fixed to the support around the shaft 3 and having a pin 33 engaging a hole in the housing. preferably but not necessarily, holding the. device, vertically with respect to its support.

Features of my invention shown and described but not claimed herein are covered in my co-pending application filed January 26. 1915, Serial No. 4551.

It is evident that many changes may be resorted to in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention; hence I do not wish to limit myself to the structure herein set forth, but

What I claim is:

1. A windingdevice for spring-motors including a prime motor, means operated by the resistance of the spring-motor spring to stop the prime motor, and manual means for starting the prime motor.

3. A winding device for spring-motors ineluding a switch, an electric motor, the switch being opened by the resistance of the springmotor spring to stop the electric motor, and manual means for closing the switch for starting the electric motor.

4. A winding device for spring-motors including a prime motor, means for connecting it to the spring-motor comprising an element moved by the resistance of the spring-motor spring to stop the prime motor, and manual means to move said elestart the electric ment to start the prime motor.

5. A winding device for spring-motors in" cluding a prime motor, means for connecting it to the sprlng-motor comprising an element moved the resistance of the'i spring-motor spring, and both automatic and manual means to move said element to start the prime motor. I

6. A winding device for. spring-motors ineluding a switch, an electric motor means for connecting it to the spring-motbr comprising an element moved by the resistance of. the s'pring motor spring to open the switch for stopping the electric motor, and manual means to move said element and close the switch for starting the electric motor.

7. A winding device for spring-motors including aswitch, an electric motor, means for connecting it to the spring-motor com-' prising an element moved by the resistance of the spring-motor spring to open the switch for stopping the electric mot r. ..a nd both .automatic and ing the electric motor.

8. A winding device cluding a prime motor, automatic means controlled by the varying resistance of the spring-motor spring to start and stop the prime motor :nd'manual means to start the 9. A winding device for spring-motors including a switch, an electric motor, automatic means controlled by the varying re.- sistance of the spring-motor spring for opening and closing the switch to stop and motor and manual means for closing the switch to start the motor.

10. A winding de ice for spring-motors including a prime motor, means for connecting it to the spring motor comprising a movable element whose movement is'controlled by the. varying resistance of the springmotor spring to start and stop the prime motor, and manual means 'tor starting the prime motor. v

ll. A winding device for spring-motors including a switch, an. electric motor, means is controlled by manual means tome-ire said element and close the switch for startfor spring-motors inincluding for connecting it to "the prising a movable element whose movement the varying resistance of the spring-motor spring for opening and closing the switch to stop and start the electric motor,and manual means to close the switch for starting the said electric motor.

'12. A winding device for spring-motors including a prime motor, means for connecting it to the spring-motor comprising a movable element whose movement is controlled by the varying resistance of the spring-mo-' tor spring to start and stop the prime motor, and manual means to move said element and start the prime motor.

'13. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor com prising a movable element whose movement is controlled by the varying resistance of the spring-motor spring for opening and closing the switch to stop and start the electric motor, and manual means to move said element and close the switch for starting said electric motor.

14. A winding device for spring-motors including a prime motor, means for connecting it to the spring-motor comprising a longitudinally movable rotary shaft whose longitudinal movement is controlled bythe varythe switch to stop and start the electric motor, and manual means to move said shaft and close the switch tor starting said elec- -tric motor.

16. A winding device for spring-motors an electric motor, means for connecting it tothe spring-motor comprising the longitudinally movable rotary armature by the resistance to stop the electo start the shaft moved longitudinally of the spring-motor spring tric motor, and manual means electric motor.

17. A wind'ng device for spring-motors including an electric motor, means for connecting it to. the spring-motor, comprising spring-motor comthe longitudinally movable rotary armature shaft moved longitudinallyby the resistance of the spring-motor spring to stop the electric motor, and manual and automatic means to' start the electric motor. i

18. A winding device for spring-motors incliiding an electric motor, means torrennecting it to the spring-motor coinprislng the longitudinally movable rotary armature &

shaft whose longitudinal movements to stop and start the electric motor are accomplished by the increasing and decreaslng endwise pressure on the shaft due to the increase and decrease in the spring-motor spring tension, and manual means to start the electric motor.

19. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft whose longitudinal movement to open the switch for stopping the motor is accomplished by the-in creasing endwise pressure on the shaft due to the increase in the spring-motor spring tension.

20. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft whose longitudinal movement to open the switch for stopping the mot r is accomplished by the increasing endwise pressure on the shaft due to the increase in the spring-motor spring tension,

and automatic means to close the switch for starting the electric motor.

21. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft whose longitudinal move ment to open the switch for stopping the motor is accomplished by the increasing endwise pressure on the shaft due to the increase in the spring-motor spring tension, and manual means to close the switch for starting the electric motor.

:22. A win-ding device for spring motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft whose longitudinal movement to close the switch for starting the e. etr'ic motor is-accomplished by the decreasing endwise pressure on the shaft due to the decrease in the spring-motor spring tension.

A winding device for spring-motors including a s.vitch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft whose longitudinal movement to close the switch for starting the electric motor is accomplished by the decreasing endwise pressure on decrease in the spring-motor spring tension, and automatic means to open the switch for stopping the electric motor.

24. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft whose longitudinal movements to open and close the switch for stop the shaft due to the ping and starting the electric motor are accomplished by the increasing and decreasing endwise pressure on the shaft due to the increase and decrease in spring-motor spring tension.

A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary arinature shaft whose longitudinal movements to open and close the switch for stopping and starting the electric motor are accomplished by the increasing and decreasing endwise pressure on he shaft due to the increase and decrease in the spring-motor spring tension, and manual means to-close the switch for starting the electric motor.

26. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft whose movement in one direction is accomplished by an increase in pressure thereon due to an increased tension of the spring-motor spring to open the switch for stopping'the electric motor and means for moving the armature shaft in the opposite direction when the tension of the spring-motor spring is reduced and close the Switch for starting the electric motor.

27. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longit-lulinally movable rotary armature shaft whose movement in one direction is accomplished by an increase in pressure thereon due to an increased tension of the spring-motor spring to open the switch for stopping the electric motor and means for moving the armature shaft in the opposite direction when the tension of the spring-n'1otor spring is reduced and close the switch for starting the electric motor, and manual means for closing the switch to start the electric motor.

28. A winding device for spring-motors including a switch, an electric motor, means for connecting it to the spring-motor comprising the longitudinally movable rotary armature shaft, said spring-motor spring serving as a means to move the shaft in one direction for opening the switch to stop the electric motor and means to move the shaft in the other direction and close the switch to start the electric motor. the movement of the shaft being acconualishcd by an overbalancing in pressure due to the varying tension of the spring-motor spring.

A winding device for springanotors including a switch. an electric motor, means forconnecting it to the spring-motor comprising the longitud nally movable rotary armature shaft, said spring-motor spring serving as a means to move the shaft in one direction for opening the switch 'to stop the port with the housing for electric motor and means to move the shaft 111 the other direction and close the switch to start the electric motor, the movement of the shaft being accomplished by an overhaving its housing pivotally supported on" said shaftvand means for preventing the housing from turning on said shaft.

31. The COIlllJlIliltlOll with a suitable support and a spring-motor winding shaft el t tending therethrough, of a winding device havlng its housing pivotally supported on said shaft, and means connecting the sup- .port with the housing for preventing the housing-from turning on said shaft.

The combination with a suitable support and a spring-motor winding shaft extending theretlnbuglnof a winding device having its housing pivotally supported on said shaft, and means connecting the suppreventing the housing from turning on said shaft, the said means comprising a plate secured to the support and having an interlocked engagement with said housing,

33. The combination with a suitable support and a spring-1notor Winding shaft extending t-herethrough, of a winding device having'its housing pivotally supported on said shaft, and means connecting" the support with the housing for preventing the housing from turning on said shaft, said means comprising a plate secured to the sup port and having a pin entering said housing, for interlocking the plate and'housing.

34. A winding device for spring motors Copies of this. patent may he obtained for five cents each, Washington, 8.

including a. switch, an electric motor, means for connecting it to the spring motor comprising a' longitudinally movable rotary armature shaft, gitudinally in one direction by an increased resistance of the spring-motor spring to open the switch to stop the motor and automatic means to return the shaft to its original position and to close the switch to electric motor when the tension of the spring-motor spring is reduced.

35. A winding device for spring motors including a switch, an electric motor, means for connecting it to the spring motor comprising a longitudinally movable rotary armature shaft, said shaft being moved lonsaid shaft being moved lonstart the e gi-tudinally in one direction by an increased resistance of the spring-motor spring to open the switch to stop the motor and a common means acting. on the switch and shaft to return the shaft to its original position and to close the switch to start the eiectric motor when the tension of the springmotor spring is reduced.

36. A winding device for, spring motors including a switch, an electric motor, means for connecting it to the spring motor comprising a longitudinally movable rotary armature shaft, said shaft being moved lo'ngitudinally in one direction by an increased resistance of the spring-motor spring to open the switch to stop the motor and av spring acting on the switch and shaft to return the shaft to its original position and to close the switch to start the electric motor when the tension of the spring-In tor spring is re duced. 7 p In testimony, that I claim the foregoing as my invention, I have signed my name this 30th day of November, 1915.

JosEPn w. JONES,

by addressing the Gemmissioncr of. Entrants, 

